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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

Dr. Charles Weaver • Article Archive

Dr. Charles Weaver is on the faculty of the Juilliard School, and serves as organist and director of music at St. Mary’s Church in Norwalk, Connecticut. His research interests include the history of music theory and the theory of plainchant rhythm. He lives in Connecticut with his wife and four children.—Read full biography (with photographs).

Dr. Charles Weaver · March 7, 2023

Beauty Ever Ancient, Ever New

Every Gregorian melody is a precious gift, and every time we meet a melody again, we have a chance to consider some new aspect.

Dr. Charles Weaver · February 27, 2023

An Interview on Mocquereau’s Method

I recently appeared on Square Notes, the Sacred Music Podcast to discuss some of the basics of Dom Mocquereau’s system of Gregorian rhythm. It’s impossible to give a full treatment to such a complex topic in a mere forty minutes, but I touched on a lot of the foundational ideas, with especial emphasis on the […]

Dr. Charles Weaver · January 26, 2023

What is the Tonic Accent?

We should define our terms. What makes a syllable accented, and what makes an accent a tonic accent?

Dr. Charles Weaver · December 8, 2022

Gregorian Rhythm Wars • “The Limits of History”

There’s nothing necessarily authentic about the “authentic” rhythm.

Dr. Charles Weaver · November 26, 2022

Gregorian Rhythm Wars • “On the Nuance Theory of Plainchant”

A brief historical survey of free rhythm in plainchant, as practiced from the modern monastic foundation of Solesmes (1833) to the present.

Dr. Charles Weaver · November 16, 2022

Gregorian Rhythm Wars • “Disputed Questions” (16 Nov 2022)

A few further thoughts on what ways of singing chant are “allowed.”

Dr. Charles Weaver · November 13, 2022

Gregorian Rhythm Wars • “Charlie’s First Response to Jeff” (13 Nov 2022)

Ostrowski, wishing to avoid fussiness, may justifiably refuse this invitation. But to argue, as he has, that these signs and the prayerful and aesthetic movements they embody are “illicit” is just wildly off the mark.

Dr. Charles Weaver · October 23, 2022

An Upcoming Concert in NYC

Announcing a concert next Saturday in honor of Christ the King.

Dr. Charles Weaver · October 9, 2022

The Solesmes Episema and Contemplation

Are we even singing the Solesmes rhythm at all?

Dr. Charles Weaver · September 29, 2022

Solmization from the Inside: Part 2

What can medieval and renaissance music pedagogy offer to us now?

Dr. Charles Weaver · September 12, 2022

Pre-Reformation Polyphony among the Recusants

What happened to all that polyphony once Catholicism became illegal?

Dr. Charles Weaver · August 26, 2022

PDF Download • Mocquereau on Trochee Trouble

This can seem like a dry topic, but it actually often deals with practical issues faced by every choirmaster who wants to promote plainchant.

Dr. Charles Weaver · July 23, 2022

Pothier Teaches Us to Sing an Antiphon

A look at Dom Pothier’s performance instructions for a communion antiphon reveals a great deal of complexity in this pre-Mocquereau interpretive approach.

Dr. Charles Weaver · May 26, 2022

Summer Courses in Sacred Music in New York

This summer, there are several interesting graduate-level courses on offer at St. Joseph’s Seminary in New York.

Dr. Charles Weaver · May 7, 2022

A Curious Rhythmic Detail in Tomorrow’s Jubilus

Occasionally the Solesmes rhythmic markings are surprising, as in one of tomorrow’s alleluias. Can we make sense of this?

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of May (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    Simplified Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski
    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski

Random Quote

Oh, what sighs I uttered, what tears I shed, to mingle with the waters of the torrent, while I chanted to Thee, O my God, the psalms of Holy Church in the Office of the Dead!

— ‘Isaac Jogues, upon finding Goupil’s corpse (1642)’

Recent Posts

  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations
  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026

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